论文标题
温暖的tachyon通货膨胀和滚动标准
Warm Tachyon Inflation and Swampland Criteria
论文作者
论文摘要
考虑到tachyon田地起发挥作用并驱动通货膨胀的作用的两个组成部分温暖tachyon通胀的情况。在通货膨胀期间,Tachyon标量场与被认为是光子气体(即辐射)的宇宙另一个组成部分相互作用。相互作用的术语包含耗散系数,研究是根据文献中{研究}的两个不同和熟悉的系数选择进行建模的。通过应用最新的观测数据,可以获得模型的自由参数的可接受范围。对于{估计}范围内的任何选择,理论预测和观察值之间都有可以接受的一致性。尽管该模型是基于某些假设建立的,但对于模型的自由参数的获得值检查其有效性至关重要。人们意识到,对于所有范围的所有值,该模型并不是自以为是的,有时违反了假设。因此,{要同时与数据具有自矛盾和一致}模型的参数需要再次为{约束}。之后,我们将考虑最近提出的弹置猜想,这对通货膨胀模型施加了两个条件。这些标准可以排除某些通货膨胀模型,但是,温暖的通货膨胀被称为可以成功满足Swampland标准的模型之一。精确的调查确定,提议的温暖的tachyon通货膨胀无法满足某些情况下的Swampland标准。实际上,对于耗散系数的第一种情况,仅依赖于标量字段,该模型才能同意观察数据...
The scenario of two components warm tachyon inflation is considered where the tachyon field plays the role of inflaton and drives inflation. During inflation, the tachyon scalar field interacts with the other component of the Universe which is considered as photon gas, i.e. radiation. The interacting term contains a dissipation coefficient, and the study is modeled based on two different and familiar choices of the coefficient that have been {studied} in the literature. By applying the latest observational data, the acceptable ranges for the free parameters of the model are obtained. For any choice inside the {estimated} ranges, there is an acceptable concordance between the theoretical predictions and observations. Whereas the model is established based on some assumptions, it is vital to check their validity for the obtained values of the free parameters of the model. It is realized that the model is not self-consistent for all values of the ranges and sometimes the assumptions are violated. Therefore, {to have both self-consistency and agreement with data} the parameters of the model need to be {constrained} again. After that, we are going to consider the recently proposed swampland conjecture, which imposes two conditions on the inflationary models. These criteria could rule out some of the inflationary models, however, warm inflation is known as one of those models that could successfully satisfy the swampland criteria. A precise investigation determines that the proposed warm tachyon inflation could not satisfy the swampland criteria for some cases. In fact, for the first case of the dissipation coefficient, where there is dependency only on the scalar field, the model could agree with observational data ...